In the Wembley crowd behind Alf, a confused child in full England supporters' kit is seen cheering a West German goal.
When Alf and Mike go into the pub before the 1966 World Cup, the car outside has the registration PGX392E, which means it was registered between 1st January 1967 and 31st July 1967.
At the outbreak of WW2 Alf replaces the photo of Neville Chamberlain with one of Winston Churchill. The portrait of Churchill is a post-war one.
In the scenes at the World Cup Final, the same footage of the German team kicking off is used twice.